Alert archive / Mississippi / Flash Flood Warnings in 2026

Flash Flood Warning 55, NWS New Orleans, LA

June 6, 2026Harrison County, Mississippi

NWS New Orleans, LA issued this flash flood warning at Jun 6, 2026, 3:44 PM CDT for Harrison County, Mississippi. It was in force for 3 hr. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
Jun 6, 2026, 3:44 PM CDT (20:44 UTC)
Expired
Jun 6, 2026, 6:45 PM CDT
In force
3 hr
Issued by
NWS New Orleans, LA
Area
Storm-based polygon
Flood severity
Unknown

County Harrison County, MS

The radar

The Mobile radar (KMOB), 86 km from the middle of the area, began a volume at 20:47 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

The nearest sounding before it

Slidell Radar S, LA (KSIL), launched 12:00Z, 8.7 hours before the alert went out and 62 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.

Skew-T log-pSkew-T log-p diagram, Slidell Radar S, LA at 12:00Z on 2026-06-06Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1103 joules per kilogram.LCLEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Slidell Radar S, LA at 12:00Z on 2026-06-06The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 29 square meters per square second.1939Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
1103 J/kg
Mixed-layer CIN
-1 J/kg
Mixed-layer LCL
494 m above ground
0-6 km bulk shear
10 kt
0-1 km storm-relative helicity
29 m²/s²
0-3 km storm-relative helicity
18 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this flash flood warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS New Orleans, LA wrote its last area forecast discussion before this flash flood warning went out at Jun 6, 2:39 PM CDT, 1 hour 5 minutes earlier. Its key messages:

  • Updated at 148 PM CDT Sat Jun 6 2026
  • A weak tropical wave will continue to bring plenty of showers and a few storms to the area this weekend. As the wave moves west, winds and rain chances will lower as we move into the new week.
  • As easterly to east-southeasterly winds ease, it will allow water levels to ease as well causing coastal flood advisories to drop. Winds will fall to around 10 to 15 knots which will keep tide levels abnormally high today. More easing of these tide levels is expected Sunday into the new work week.
  • Abundant moisture will help lead to numerous to widespread light to moderate showers and embedded thunderstorms through the weekend. Areas east of I-55 and along and south of the 10/12 corridors will have the greatest risk of seeing locally heavy rain.
Area forecast discussion, Jun 6, 2:39 PM CDT, 1 hour 5 minutes before
Area Forecast Discussion
National Weather Service New Orleans LA
239 PM CDT Sat Jun 6 2026

...New SHORT TERM, LONG TERM, AVIATION, MARINE...

.KEY MESSAGES...
Updated at 148 PM CDT Sat Jun 6 2026

- A weak tropical wave will continue to bring plenty of showers
  and a few storms to the area this weekend. As the wave moves
  west, winds and rain chances will lower as we move into the new
  week.

- As easterly to east-southeasterly winds ease, it will allow
  water levels to ease as well causing coastal flood advisories to
  drop. Winds will fall to around 10 to 15 knots which will keep
  tide levels abnormally high today. More easing of these tide
  levels is expected Sunday into the new work week.

- Abundant moisture will help lead to numerous to widespread light
  to moderate showers and embedded thunderstorms through the
  weekend. Areas east of I-55 and along and south of the 10/12
  corridors will have the greatest risk of seeing locally heavy
  rain.

&&

.SHORT TERM...
(Now through Tuesday night)
Issued at 148 PM CDT Sat Jun 6 2026

This afternoon and early evening is probably the last gasp of any
real impacts. Convection finally started to develop and spread
across the region late this morning and through midday. With
abundant moisture in place showers and any thunderstorms will be
efficient rain producers and a quick 1-2 inches of rain and as we
continue to see a few banded areas of rain we will likely run
into isolated flash flooding. Most areas through this evening will
see rain of 0.5 an inch to just under 2" while there will be
streaks of 2 to possibly as much as 6/7 inches. Convection will
continue into the evening and may persist somewhat into the
overnight hours but the more intense rain will likely start to
wane during the mid/late evening hours.

Sunday will be the last day with above normal PoPs. We will still
have abundant moisture in place and the ridge aloft will not have
quite built in yet from the eastern Gulf as the southern Plains
s/w pulls off to the north. This will lead to our northern half
and maybe more so northwestern half of the area having the best
chance for rain as subsidence starts to increase across the
southeastern 3rd of the CWA.

Heading into the new workweek ridging will build over the area.
This will help to keep PoPs down some but once again this ridge is
building in from the southeast and will be more of a dirty ridge.
Mid lvl hghts will only be around 589-591 dm and PWs will still be
ATA 2" to start Monday but some drier air may rotate around
dropping the PWs to around 1.75 by midday Tuesday. Because of
that we still have PoPs in the forecast but nothing like we have
has the last few days. /CAB/

&&

.LONG TERM...
(Wednesday through Friday night)
Issued at 148 PM CDT Sat Jun 6 2026

Extended portion of the forecast for the most part is much quieter
than the short term. Things will get a little drier and warmer as
we trend more towards a typical Summertime environment. Medium
range models overall have a fairly similar pattern through much of
the work week but they start to diverge at the end of the work
week and especially into next weekend. That said even with the
differences in the models the sensible forecast for our area is
fairly similar. With that no changes made to the extended.

Ridge dominating the Lower MS and much of the southeastern CONUS
will remain in place for another 36 to 48 hours however we will
need to watch the L/W trough moving across the northern half of
the CONUS. Right now that trough it looks like it will just surge
east. With the mid lvl jet likely having already rounded the base
of it and moving to the downstream side, its not going to want to
dig but combine the fact that there will be a ridge to the south
which will block it should keep things on the slightly drier and
warmer side through the remainder of the week and into the
weekend.

Yes There have been some hints at another wave moving into the
Gulf out of the Caribbean but models are all over the place with
it and at this time there is no indication that we have anything
to be concerned about. Lets say it again, it is Hurricane Season
and we should always be paying attention to the tropics and
staying updated/informed. However, until there is something to
worry about, do not worry or waste your time with it. /CAB/

&&

.AVIATION...
(18Z TAFS)
Issued at 148 PM CDT Sat Jun 6 2026

Convection is or will impact most if not all terminals and the
biggest impact is MVFR cigs and IFR vsbys, possibly even LIFR
vsybys with the stronger storms. Outside of convection there is
still a good chance that most terminals will have to deal with low
cigs around 2200-3k ft. Convection should slowly begin to
dissipate early this evening from southwest to northeast but some
if not most terminals may still be dealing with low cigs
especially if heavy rain occurred over any of those terminals.
MVFR cigs that do develop will likely persist well into tomorrow
morning. /CAB/

&&

.MARINE...
Issued at 148 PM CDT Sat Jun 6 2026

Winds are beginning to relax and will continue through the
remainder of the weekend and into the new workweek. Winds are still
around 15-20 knots in the open waters right now and may persist just
into the evening but these should fall off very quick with to near
10 knots before sunrise Sunday. Over the protected waters and
especially the tidal lakes winds are already down to 10-15 knots and
those will also continue to relax. Scattered showers and
thunderstorms will also be possible with the higher coverage early
in the forecast period. Winds and seas will locally be high in and
near convection. /CAB/

&&

.LIX WATCHES/WARNINGS/ADVISORIES...
LA...Coastal Flood Advisory until 10 AM CDT Sunday for LAZ058-082-084-
     098.

GM...None.
MS...None.
GM...None.
&&

SHORT TERM...CAB
LONG TERM....CAB
AVIATION...CAB
MARINE...CAB

In the hours before

Local storm report, Jun 6, 2:17 PM CDT, 1 hour 27 minutes before
Preliminary Local Storm Report
National Weather Service New Orleans LA
217 PM CDT Sat Jun 6 2026

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0144 PM     Marine Tstm Wind 6 WSW East New Orleans  30.04N 90.03W
06/06/2026  M44 MPH          Orleans            LA   ASOS

            ASOS station KNEW New Orleans Lakefront
            Airport.

&&
Special weather statement, Jun 6, 2:17 PM CDT, 1 hour 27 minutes before
Special Weather Statement
National Weather Service New Orleans LA
217 PM CDT Sat Jun 6 2026

LAZ076-078-079-062000-
Southeast St. Tammany LA-Eastern Orleans LA-Northern St. Tammany LA-
217 PM CDT Sat Jun 6 2026

...A STRONG THUNDERSTORM WILL IMPACT PORTIONS OF NORTHEASTERN ORLEANS
AND SOUTHEASTERN ST. TAMMANY PARISHES THROUGH 300 PM CDT
...

At 216 PM CDT, Doppler radar was tracking a strong thunderstorm
capable of producing funnel clouds and waterspouts over Eden Isle,
moving northeast at 15 mph.

HAZARD...Waterspouts and funnel clouds and winds in excess of 40
         mph.

SOURCE...Radar indicated.

IMPACT...Waterspouts can easily overturn boats and create locally
         hazardous waters. If a funnel cloud briefly touches down,
         minor damage to outdoor objects is possible. Gusty winds
         could knock down tree limbs and blow around unsecured
         objects.

Locations impacted include...
New Orleans, Slidell, Eden Isle, and Pearlington.

This includes Interstate 10 in Louisiana between mile markers 259 and
273.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

&&

LAT...LON 3031 8963 3029 8965 3028 8963 3025 8963
      3024 8961 3013 8962 3012 8977 3015 8980
      3017 8977 3021 8985 3025 8989 3025 8986
      3027 8985 3035 8965
TIME...MOT...LOC 1916Z 237DEG 11KT 3023 8981

WATERSPOUT AND FUNNEL CLOUDS...POSSIBLE
MAX HAIL SIZE...0.00 IN
MAX WIND GUST...40 MPH

KLG
Local storm report, Jun 6, 2:26 PM CDT, 1 hour 18 minutes before
Preliminary Local Storm Report
National Weather Service New Orleans LA
226 PM CDT Sat Jun 6 2026

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0220 PM     Flash Flood      2 SSW Kiln              30.39N 89.44W
06/06/2026                   Hancock            MS   Emergency Mngr

            Water over roads and road closures,
            generally in northwest Hancock County.
            Specific location mentioned was Jourdan
            River Shores. May be a combination of heavy
            rains on top of coastal flooding.

&&

DSS
Local storm report, Jun 6, 2:42 PM CDT, 1 hour 2 minutes before
Preliminary Local Storm Report
National Weather Service New Orleans LA
242 PM CDT Sat Jun 6 2026

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0146 PM     Funnel Cloud     1 WSW Bay Saint Louis   30.30N 89.35W
06/06/2026                   Hancock            MS   Public

            Several public and MPING reports of a
            rotating wall cloud and funnel clouds over
            Bay St Louis/Waveland areas from a passing
            thunderstorm. Time estimated from radar.

&&

KLG
Special weather statement, Jun 6, 2:57 PM CDT, 47 minutes before
Special Weather Statement
National Weather Service New Orleans LA
257 PM CDT Sat Jun 6 2026

LAZ057-058-062030-
St. John The Baptist LA-St. James LA-
257 PM CDT Sat Jun 6 2026

...A STRONG THUNDERSTORM WILL IMPACT PORTIONS OF WEST CENTRAL ST.
JOHN THE BAPTIST AND NORTHEASTERN ST. JAMES PARISHES THROUGH 330 PM
CDT
...

At 257 PM CDT, Doppler radar was tracking a strong thunderstorm
capable of producing funnel clouds near Lutcher, or 9 miles west of
Reserve, moving north at 15 mph.

HAZARD...Funnel clouds and winds in excess of 40 mph.

SOURCE...Radar indicated.

IMPACT...If a funnel cloud briefly touches down, minor damage to
         outdoor objects is possible. Gusty winds could knock down
         tree limbs and blow around unsecured objects.

Locations impacted include...
Gramercy, Lutcher, Convent, Garyville, and Wallace.

This includes Interstate 10 in Louisiana between mile markers 192 and
197.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

Conditions are favorable for the development of weak, brief funnel
clouds. This type of funnel cloud is harmless, but on rare occasions
they can briefly touch down, producing wind gusts over 50 mph. If a
funnel cloud is spotted move indoors or to safe harbor and report
your sighting to the National Weather Service.

&&

LAT...LON 3012 9086 3013 9082 3015 9063 3005 9065
      2998 9088
TIME...MOT...LOC 1957Z 188DEG 11KT 3008 9071

FUNNEL CLOUDS...POSSIBLE
MAX HAIL SIZE...0.00 IN
MAX WIND GUST...40 MPH

CAB
Local storm report, Jun 6, 3:33 PM CDT, 11 minutes before
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The office that day

Everything else NWS New Orleans, LA issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jun 6, 10:46 AM CDTCoastal Flood AdvisoryLIXLivingston, Saint Charles, Saint John the Baptist, Tangipahoa23 hr
Jun 6, 12:42 PM CDTSpecial Weather StatementLIXSaint Charles33 min
Jun 6, 1:21 PM CDTSpecial Marine WarningLIX54 min
Jun 6, 1:31 PM CDTAreal Flood AdvisoryLIXJefferson, Saint Charles3 hr
Jun 6, 1:38 PM CDTFlash Flood WarningLIXSaint Tammany, Washington5 hr
Jun 6, 1:41 PM CDTSpecial Marine WarningLIX49 min
Jun 6, 1:59 PM CDTAreal Flood AdvisoryLIXSaint Tammany11 min
Jun 6, 2:10 PM CDTFlash Flood WarningLIXSaint Tammany4 hr
Jun 6, 2:17 PM CDTSpecial Weather StatementLIXOrleans43 min
Jun 6, 2:57 PM CDTSpecial Weather StatementLIXSaint James33 min
Jun 6, 5:17 PM CDTSpecial Marine WarningLIX88 min
Jun 6, 5:18 PM CDTSpecial Marine WarningLIX87 min
Jun 6, 6:42 PM CDTSpecial Marine WarningLIX2 hr
Jun 6, 10:26 AM CDTRiver Flood WarningLIXHarrison61 hr
Jun 6, 10:30 AM CDTRiver Flood WarningLIXHarrison52 hr
Jun 6, 12:02 PM CDTAreal Flood AdvisoryLIXHancock, Harrison77 min
Jun 6, 1:16 PM CDTSpecial Weather StatementLIXPearl River29 min
Jun 6, 1:19 PM CDTFlash Flood WarningLIXHancock, Harrison, Pearl River5 hr
Jun 6, 1:33 PM CDTAreal Flood AdvisoryLIXHancock, Pearl River5 min
Jun 6, 1:42 PM CDTSpecial Weather StatementLIXHancock33 min
Jun 6, 4:25 PM CDTAreal Flood AdvisoryLIXWilkinson3 hr
Jun 6, 4:41 PM CDTRiver Flood WarningLIXPearl River43 hr
Jun 6, 4:42 PM CDTRiver Flood WarningLIXPearl River44 hr
Jun 6, 6:44 PM CDTFlash Flood WarningLIXHarrison4 hr

Nearby

Flash Flood Warnings in Mississippi, 2026Every flash flood warning in 2026

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.